2JBW:
reference: Structure and action of a C-C bond cleaving alpha/beta-hydrolase involved in nicotine degradation., Schleberger C, Sachelaru P, Brandsch R, Schulz GE, J Mol Biol. 2007 Mar 23;367(2):409-18. Epub 2006 Dec 30. PMID: 17275835

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).